what the hell is a nug i keep hearin people say it but i dunno what it means. im good on most other words its just this one i got trouble with.
1 Improper use of contact lenses or steroid eyedrops can lead to fungal infections, which in turn can cause corneal ulcers. Also, a corneal injury that results in plant material getting into the eye can lead to fungal keratitis.  Acanthamoeba are microscopic, single-celled amoeba that can cause human infection.
Causes of peptic ulcers include: 1  H. pylori bacteria (Helicobacter pylori ). Most ulcers are caused by an infection from a bacteria or germ called H. pylori. 2  NSAIDs (nonsteroidal anti-inflammatory drugs). These are over-the-counter pain and fever medicines such as aspirin, ibuprofen, and naproxen.